import requests
from bs4 import BeautifulSoup


allutil=[]
#获取网站的全部信息
def getHtmlText(url):
    try:
        r = requests.get(url)
        r.raise_for_ststus()
        r.encoding = 'utf-8'
        return r.text
    except:
        return "error"

#获取网页当中的相关数据
def fallMyData(text):
    data = text.find_all('tr')
    for tr in data:
        ltd = tr.find_all('td')
        if len(ltd)==0:
            continue
        singUniv=[]
        for td in ltd:
            singUniv.append(td.string)
        allutil.append(singUniv)


# 规定输出的格式如下
def myListTableth(num):
    print("{:^4}{:^10}{:^5}{:^8}{:^10}".format("排名","学校名称","省市","总分","指标",))
    for i in range(num):
        u=allutil[i]
        print("{:^4}{:^10}{:^5}{:^8}{:^10}".format(u[0],u[1],u[2],u[3],u[4])


def main():
    url = 'http://www.zuihaodaxue.cn/zuihaodaxuepaiming2016.html'
    html =getHtmlText(url)
    suop =BeautifulSoup(html,"html.parser")
    fallMyData(suop)
    myListTableth(10)
main()